Department of Civil Engineering
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Item A Procedure for the Evaluation of Coupling Beam Characteristics of Coupled Shear Walls(Asian Journal of Civil Engineering, 2007) Bhunia, DipenduThe behavior of coupled shear walls is governed by coupling beams. This paper presents a simple technique for the purpose of design to determine an appropriate level of yield moment capacity for the coupling beams. This technique is checked against nonlinear static pushover analysis performed using DRAIN-3DX for the usual case of symmetric coupled shear walls with different types of coupling beams. The assumption of pinned base in the shear walls with steel coupling beams yields results which agree closely with those of DRAIN-3DX. For the case of fixed base shear walls, the design technique is expected to be conservativeItem Investigation into the Behavior of Coupled Shear Walls(Taylor & Francis, 2018-03) Bhunia, DipenduAn effective design technique for symmetrical coupled shear walls is presented in this paper. The proposed formulation, including assumptions and steps with mathematical formulation, has been elaborated to arrive at the design technique. An example has been considered to validate the technique with the DRAIN-3DX and SAP non-linear analysis. A parametric study has also been considered to find out the limitations of this technique and suggest remedial action. It is concluded that the proposed design technique can be considered in the design of coupled shear walls under seismic motion.Item A study on the behaviour of coupled shear walls(Korea Science, 2012-06) Bhunia, DipenduAn effective design technique for symmetrical coupled shear walls is presented. Proposed formulation including assumptions and steps with mathematical formulation has been elaborated to make the design technique. An example has been considered to validate the technique with the DRAIN-3DX (1993) and SAP V 10.0.5 (2000) nonlinear programs. Parametric study has also been considered to find out the limitations along with remedial action of this technique. On the other hand, nonlinear static analysis is considered to determine the response reduction factor of coupled shear walls. Finally, it has been concluded in this paper that the proposed design technique can be considered to design the coupled shear walls under seismic motion.Item A Conceptual Design Approach of Coupled Shear Walls(Hindawi Publishing Corporation, 2013) Bhunia, DipenduThe growth of population density and shortage of land in urban areas are two major problems for all developing countries including India. In order to mitigate these two problems, the designers resort to high-rise buildings, which are rapidly increasing in number, with various architectural configurations and ingenious use of structural materials. However, earthquakes are the most critical loading condition for all landbased structures locatedinthe seismically active regions. The Indian subcontinent is divided into different seismic zones as indicated by IS 1893 (Part 1) [1], facilitating the designer to provide adequate protection against earthquake. A recent earthquake in India on January 26th, 2001 caused considerable damage to a large number of RCC high-rise buildings (number of storey varies from 4 to 15) and tremendous loss of life. The reasons were (a) most of the buildings had soft and weak ground storey that provided open space for parking, (b) poor quality of concrete in columns, and (c) poor detailing of the structural design (http://www.nicee.org/eqeiitk/ uploads/EQR Bhuj.pdf).